Smith somehow interpreted that as an affront to his wife and punched Gorman.

The couple left the man to die at a busy intersection. While Gorman was rushed to the hospital, he was later pronounced dead.

After the attack, Smith added insult by bragging about the attack on Facebook.

'Dude thought it was ok to disrespect wifey while on the bus thinkin' nobody was gonna pop up. Not gonna go into details but I had to smack'em to sleep,' Smith wrote later that day. 'I kinda feel bad though cause of what he had to deal with last night on Queens Blvd.'

In several public Facebook posts, Smith bragged about the assault where he hints at what happened

Two days ago, Smith's wife defended his actions on Facebook. She remains at large

This is the moment 64-year-old Gorman was hit on a Queens street on June 26 by Smith, 42. He was pronounced dead in hospital. Smith remains at large

Two days ago, Makarova - who remains at large - defended her husband's actions in her own Facebook post.

'Tmes (sic) and so relevant!!! I love you hunny. Hold ur head! It's so ignorant of people to jut read the papers and take it as if God talking!!! Nobody shows the footage where this man pushed me, curse me out, called matt n/$@...I'm not feeding into this s***. All I can say is get ur facts straight!' the post reads.

Investigators were able to identify Smith from a mugshot of him from a prior arrest which matched the surveillance video.

Smith and his wife Makarova live about a half mile from where Gorman was attacked

It shows an injured Mr Gorman struggling to get up as his Smith strolls away with his wife by his side as if nothing had happened.

Mr Gorman was left lying on the sidewalk and and fighting for his life.

EMS responded to the scene and took him to a local hospital before he was pronounced dead.

The Medical Examiner ruled last week that he died from a combination of the punch, complications from a stroke and a contributing heart condition. The death was classed as a homicide.

An online obituary revealed Mr Gorman is survived by his two sisters and a brother and was a lifelong sports fan, 'dedicated' to the Red Sox, Mets 'and all things baseball, hockey, basketball and football'.

They have criticized the cops for taking so long to release the footage.

'The video could have been released the last week in June or the first week in July,' said Bryan Gorman, the victim's brother.

'Between the time it happened and last week, it seemed like there really wasn't much being done on it.'

Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).